Radiators and Air flow:

*Consider a larger radiator. Some Factory radiators are a 2 core and can be increased to a 3 core radiator.
*Please… resist fly screens where possible.
*Consider the size and positioning of driving lights, winch, number plates and particularly bull bar air flow.
*Check to make sure air conditioning condenser fins are clean!!
*If an Intercooler is mounted in front this can add considerably to hot air flow over the radiator and restricting air flow to the radiator.
*Consider installing a few small bonnet vents on the left and right of the rear region of the bonnet. This has proven to be a popular addition and has huge effects on under bonnet temps!! Considering how tight most engine bays are after a few accessories are added, this venting addition can reduce heat stress on a variety of products under the bonnet.

Engine set-up:

*Over fuelling can be a big cause of high combustion temperatures.
*Make sure the fuel injection system has been given the ‘once over’.
*If the vehicle is fitted with a turbo or super charger, over fuelling may be the cause. It is very easy to over fuel a diesel once plenty of air is available as possibly no smoke under load may be visible. Visible smoke under load can be a warning of over fuelling!


http://www.thedieselexperts.com
Andrew Leimroth of Berrima Diesel Service is one of “The Diesel Experts" see www.thedieselexperts.com and has personally fitted on average 2 or 3 turbos a week for the past 10 years. That’s thousands of tubos. Berrima Diesel Service are Australia's Leading Diesel Service Centre solving diesel problems and consulting to the automotive industry since 1956.